The LM5118 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high-performance, cost-efficient Buck-Boost regulator using a minimum of external components. The Buck-Boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage, making it especially suitable for automotive applications. The LM5118 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. This dual-mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. This easy-to-use controller includes drivers for the high-side buck MOSFET and the low-side boost MOSFET. The regulators control method is based upon current mode control using an emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power-enhanced, 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.
| Documentación principal | Tipo | Título | Opciones de formato | Descargar la versión más reciente en inglés | Fecha |
|---|---|---|---|---|---|
| * | Hoja de datos | LM5118 Wide Voltage Range Buck-Boost Controller datasheet (Rev. J) | PDF | HTML | 30/06/2017 | |
| Informe | Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) | 10/04/2019 | |||
| Artículo técnico | Learn how to keep your car battery steady and running longer | PDF | HTML | 28/03/2017 | ||
| Analog Design Journal | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 21/07/2016 | |||
| Nota sobre la aplicación | Maintaining Output Voltage Regulation During Automotive Cold-Crank with LM5118 | 27/07/2015 | |||
| Informe | Wide VIN power management ICs simplify white paper (Rev. A) | 19/09/2013 | |||
| Guía del usuario | AN-2178 LM5118 Four Switch Conversion (Rev. E) | 6/05/2013 |
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The LM5118 evaluation board is designed to provide the design engineer with a fully functional, Emulated Current Mode Control, buck-boost power converter to evaluate the LM5118 controller IC. The evaluation board provides a 12V output with 3A of output current capability. The evaluation board's (...)
El panel de experimentos BuckBoost es una placa que forma parte de la serie de kit de laboratorio de administración de potencia de Texas Instruments (TI-PMLK). El panel de experimentos BuckBoost utiliza el circuito integrado LM5118. La placa de experimentos BuckBoost va acompañada de un libro que (...)
El panel de experimentos BuckBoost es una placa que forma parte de la serie de kit de laboratorio de administración de potencia de Texas Instruments (TI-PMLK). El panel de experimentos BuckBoost utiliza el circuito integrado LM5118. La caja que se envía contendrá el hardware TI-PMLKBUCKBOOSTEVM (...)
This is a modified LM5118 2 switch buck-boost single inductor evaluation module (EVM) optimized to operate through automitive transients such as cold-crank. It is designed to provide 15W (5V, 3A) of output power with an input voltage range of 3V to 42V.
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
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